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GB2233469B - Spatial light modulators - Google Patents

Spatial light modulators

Info

Publication number
GB2233469B
GB2233469B GB9013593A GB9013593A GB2233469B GB 2233469 B GB2233469 B GB 2233469B GB 9013593 A GB9013593 A GB 9013593A GB 9013593 A GB9013593 A GB 9013593A GB 2233469 B GB2233469 B GB 2233469B
Authority
GB
United Kingdom
Prior art keywords
spatial light
light modulators
modulators
spatial
light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9013593A
Other versions
GB9013593D0 (en
GB2233469A (en
Inventor
William Alden Crossland
Neil Collings
David Vass
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STC PLC
Alcatel Submarine Networks UK Ltd
Nortel Networks Optical Components Ltd
Original Assignee
STC PLC
Northern Telecom Europe Ltd
STC Submarine Systems Ltd
STC Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by STC PLC, Northern Telecom Europe Ltd, STC Submarine Systems Ltd, STC Ltd filed Critical STC PLC
Publication of GB9013593D0 publication Critical patent/GB9013593D0/en
Publication of GB2233469A publication Critical patent/GB2233469A/en
Application granted granted Critical
Publication of GB2233469B publication Critical patent/GB2233469B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
    • G06N3/00—Computing arrangements based on biological models
    • G06N3/02—Neural networks
    • G06N3/06—Physical realisation, i.e. hardware implementation of neural networks, neurons or parts of neurons
    • G06N3/067—Physical realisation, i.e. hardware implementation of neural networks, neurons or parts of neurons using optical means
    • G06N3/0675—Physical realisation, i.e. hardware implementation of neural networks, neurons or parts of neurons using optical means using electro-optical, acousto-optical or opto-electronic means
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/135—Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied
    • G02F1/1354—Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied having a particular photoconducting structure or material
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06E—OPTICAL COMPUTING DEVICES; COMPUTING DEVICES USING OTHER RADIATIONS WITH SIMILAR PROPERTIES
    • G06E1/00—Devices for processing exclusively digital data
    • G06E1/02—Devices for processing exclusively digital data operating upon the order or content of the data handled
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0828—Several active elements per pixel in active matrix panels forming a digital to analog [D/A] conversion circuit
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Evolutionary Computation (AREA)
  • Molecular Biology (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Software Systems (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Data Mining & Analysis (AREA)
  • Computational Linguistics (AREA)
  • Artificial Intelligence (AREA)
  • Neurology (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
GB9013593A 1989-06-23 1990-06-18 Spatial light modulators Expired - Fee Related GB2233469B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898914453A GB8914453D0 (en) 1989-06-23 1989-06-23 Spatial light modulators

Publications (3)

Publication Number Publication Date
GB9013593D0 GB9013593D0 (en) 1990-08-08
GB2233469A GB2233469A (en) 1991-01-09
GB2233469B true GB2233469B (en) 1993-12-08

Family

ID=10658947

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898914453A Pending GB8914453D0 (en) 1989-06-23 1989-06-23 Spatial light modulators
GB9013593A Expired - Fee Related GB2233469B (en) 1989-06-23 1990-06-18 Spatial light modulators

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898914453A Pending GB8914453D0 (en) 1989-06-23 1989-06-23 Spatial light modulators

Country Status (4)

Country Link
EP (1) EP0405815B1 (en)
JP (1) JPH03208029A (en)
DE (1) DE69010788T2 (en)
GB (2) GB8914453D0 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3139134B2 (en) * 1992-06-03 2001-02-26 カシオ計算機株式会社 Liquid crystal display
GB2269296A (en) * 1992-08-01 1994-02-02 Northern Telecom Ltd Telecommunications switch architecture
US5704015A (en) * 1992-10-20 1997-12-30 Fuji Photo Film Co., Ltd. Optical operation element, optical data processing circuit and photoelectric operation element
GB9223697D0 (en) * 1992-11-12 1992-12-23 Philips Electronics Uk Ltd Active matrix display devices
FR2702851A1 (en) * 1993-03-17 1994-09-23 France Telecom Light modulator based on ferroelectric liquid crystals and having optical addressing
US6061039A (en) * 1993-06-21 2000-05-09 Ryan; Paul Globally-addressable matrix of electronic circuit elements
DE69426586T2 (en) * 1993-09-23 2001-05-31 Sharp K.K., Osaka Integrated electro-optic liquid crystal device and method of using it
CA2185787A1 (en) * 1994-03-22 1995-09-28 Richard S. Norman Efficient direct cell replacement fault tolerant architecture supporting completely integrated systems with means for direct communication with system operator
US5563727A (en) * 1994-06-30 1996-10-08 Honeywell Inc. High aperture AMLCD with nonparallel alignment of addressing lines to the pixel edges or with distributed analog processing at the pixel level
US5605856A (en) * 1995-03-14 1997-02-25 University Of North Carolina Method for designing an electronic integrated circuit with optical inputs and outputs
AUPO623997A0 (en) * 1997-04-15 1997-05-15 Edith Cowan University Image capture and display apparatus
GB9719019D0 (en) 1997-09-08 1997-11-12 Central Research Lab Ltd An optical modulator and integrated circuit therefor
GB9802219D0 (en) * 1998-02-02 1998-04-01 Univ Cambridge Tech Light modulator on a semiconductor substrate

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239346A (en) * 1979-05-23 1980-12-16 Hughes Aircraft Company Compact liquid crystal display system
EP0117957A2 (en) * 1983-02-28 1984-09-12 Kabushiki Kaisha Toshiba Solid-state device having a plurality of optical functions
EP0234429A2 (en) * 1986-02-17 1987-09-02 Sel Semiconductor Energy Laboratory Co., Ltd. Liquid crystal device with a charge strage structure
US4730903A (en) * 1985-01-23 1988-03-15 Semiconductor Energy Laboratory Co., Ltd. Ferroelectric crystal display panel and manufacturing method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149554B (en) * 1983-11-08 1987-04-01 Standard Telephones Cables Ltd Data terminals
GB2149555B (en) * 1983-11-10 1987-01-28 Standard Telephones Cables Ltd Improvements in liquid crystal displays
GB8402654D0 (en) * 1984-02-01 1984-03-07 Secr Defence Flatpanel display
US4699498A (en) * 1985-09-06 1987-10-13 Nec Corporation Image projector with liquid crystal light shutter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239346A (en) * 1979-05-23 1980-12-16 Hughes Aircraft Company Compact liquid crystal display system
EP0117957A2 (en) * 1983-02-28 1984-09-12 Kabushiki Kaisha Toshiba Solid-state device having a plurality of optical functions
US4730903A (en) * 1985-01-23 1988-03-15 Semiconductor Energy Laboratory Co., Ltd. Ferroelectric crystal display panel and manufacturing method thereof
EP0234429A2 (en) * 1986-02-17 1987-09-02 Sel Semiconductor Energy Laboratory Co., Ltd. Liquid crystal device with a charge strage structure

Also Published As

Publication number Publication date
EP0405815A1 (en) 1991-01-02
EP0405815B1 (en) 1994-07-20
DE69010788D1 (en) 1994-08-25
GB8914453D0 (en) 1989-08-09
DE69010788T2 (en) 1994-10-27
JPH03208029A (en) 1991-09-11
GB9013593D0 (en) 1990-08-08
GB2233469A (en) 1991-01-09

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950618